Method of assembling radiator caps



Jul 29. 1924.

A. C. LIPPERT ET AL- METHOD OF ASSEMBLING RADIATOR CAPS z, 1925 2 Sheets-Sheet Original Filed Aug.

Jul 29, 1924.

A. C. LIPPERT ET AL METHOD OF ASSEMBLING RADIATOR CAPS 2 Sheets-Sheet 2 Original Filed Auz. Z, 1923 n a 5 WM HH W- Uu a Patented July '29, 1924.

UNITED STATES PATENT oFF ca.

ALOYSIUS C. LIPPERT, OF KENOSHA, WISCONSIN, AND JOHN A. SINKO, OF CHICAGO,

ILLINOIS, ASSIGNOBS.TO ADVANCE PRODUCTS CORPORATION, OF CHICAGO, ILLI NOIS, A CORPORATION OF ILLINOIS.

METHOD OF ASSEHBIJNG RADIATOR CAPS.

Original application iflled Augnst'B, 1923, Serial No. 655,406. Divided and this application filed October 17, 1928. Serial No. 669,020.

T 0 all whom it may concern:

Be it known that we, AmYsIUs C. LIPPERT and JOHN A. Sumo, citizens of the United States, residing, respectively, in Kenosha and Chicago, in the counties of Kenosha and Cook and States of Wisconsin and Illinois, have invented a new and useful Improvement in Methods of Assembling Radiator Caps, of which the following is a specification.

Our vinvention relates to an improved method of assembling the parts of radiator caps for automobiles, the present application being a division of our co-pending application Serial No. 655,406, filed August 3, 1925, now Patent No. 1,472,87 8, dated November 6, 1923.

The general construction of radiator caps, of the character with which this invention is concerned, involves the use of an internal collar adapted to be threaded, or otherwise secured to the radiator neck, and an external collar adapted to fit around the internal collar and to be locked thereto in such manner that said internal collar cannot be removed from the radiator neck by force applied to the external collar. The present invention contemplates the provision of an internal collar of cheaper material than has been usable with the type of caps heretofore employed, this material also lending itself to a method of assembly which further reduces the cost of manufacture.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodiment thereof.

Referring to the drawings,

Figure 1 is a front elevation of a radiator.

cap assembled in accordance with our invention, the same being shown in position upon a radiator neck and bein partially broken away and sectionalizcd or convenience of illustration;

Fig. 2 is a horizontal section taken sub stantially on the line 22 of Fig. 1

' Fig. 3 is a similar section taken substantially on the line33 in Fig. 1;

Fig. 4 is a detail perspective view of the ratchet member which is disposed between the collars of the cap;

Fig. 5 is a vertical section of the outer and inner collars of the cap positioned upon the dies by which they are assembled; and- Fig. 6 is a top plan view; of the dies employed in carrying out the method of our invention. A

Upon the drawings, we haveshown both a radiator cap assembly constructed in accordance with our invention, and also the formed, as indicated at 27, to provide a pleasing and ornamental appearance. At the front of said collar, there is formed an integral lug, or projection, 28, which, in the present instance, is of keystone form and is adapted to receive a suitable inscription, or decoration, which, if desired, maybe provided on a separate piece secured to the front of said projection. A pivoted closure 29 is provided to close an opening 31 in the top of the collar member 21, said closure being adapted to have a motormeter 32, or like instrument, permanently secured thereto. A thumbscrew 33 is employed to tighten said closure 29 upon the collar, to

firmly engage a gasket which may be posi tioned in a space 34 between an inwardly extending flange 35 on the inner collar and a corresponding flange 36 on the outer collar, said closure being provided at the bottom with a beveled gasket-engaging surface 37, which may be forced tightly against the gasket by means of the thumbscrew 33.

Said collar 21 is provided with an interior circumferential groove, or recess, 38 adapted to receive projections 39 formed in the body of the collar 22, these projections being preferably formed by dies of the form disclosed in Figs. and 6 and to be hereinafter described. The internal collar 22 may be of sheet metal, such as brass, which read- 5 ily lends itself to the punching out of the projections 39 after the parts are positioned in the desired relationship, and it will be manifest that, after formation of said projections 39, the outer collar 21 cannot be removed, except by mutilation, ordestruction, of one or the other of the collars. Since, however, the recess, 0; groove, 38 extends entirely aboutvt-he interior of said collar 21, the latter may be rotated without lsiafiecting the inner collar 22, which will remain fast upon the radiator neck 24 under any attempts to remove it from the exterior. While the free rotation of the collar 21 is desirable to prevent removal of the cap from the radiator neck, it is also desirable that the collars may be locked together when turned in one direction to permit positioning of the cap upon the car and we, there- 26 fore, provide a ratchet device for this purpose, which will be now described.

Recesses', or depressions, 41 are rovided in the collar member 22 and these may beformed by bending pressure, or in any other suitable manner. Spring clips 42' are adapted tobe laid in the recesses 41, these clips being formed with a backing plate 43 adapted to be seated in the bottom of the V recess and with a ratchet part 44 adapted to project from the surface of the collar 22 when permitted by a\ recess 45 in the outer collar. Said recess is beveled at one side, as indicated at 46, and has a positive shoulder 47 at the opposite side adapted to engage the end of the ratchet part 44' when the outer-collar is turned in clockwise direction, viewing Fig. .3. Inasmuch as the member 42is-of spring, or resilient, material, the part'44 thereof may be depressed when said outercollar is bein rotated in the opposite direction and wilf since it will ride freely over the-beveled surface 46. Q 7 Attention is now directed to Figs. 5 and 6, illustrating the construction of the dies by which the c0llars21 and 22 are assembled.

A suitable base 48 is provided with an annulus 49 secured to the u per part thereof by means of screws 51, t is annulus being of such size as to fit tightly within the collar 22 when the latter is positioned thereon. An outer ring 52 may'then be positioned over the collar 22 and provides an I upper supporting surface 53 for'the bottom 0 the outer collar 21, it being understood that this ring is of such height as to dispose the/collars in the desired relatiFnship. The die proper consists of a plurality of movable members 54 arranged in the annulus 49 and l having inner beveled surfaces 55 adapted'to not restrain rotation,-

be acted upon by a plunger 56 provided with a conical point 57. Said members 54 are normally pressed inwardly by means of springs 58 positionedin slots 59 in said members and bearing against outer plates 61 secured to the periphery of the annulus 49, by means of screws 62. A top plate 63 issecured to the annulus 49 by means of screws 64, and the members 54 are movable under the pressure of the die plunger 56 within limits permitted by recesses 65 in which said members are positioned.- Projections 66 are provided on the die members 54 and are adapted to punch the material of the collar 22 into the groove 38 to interlock the collars 21 and 22, as heretofore described. Four of the die members 54 are provided, in the present instance, though it will be understood that any desired number might be used.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention, or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

We claim 1. A method of assembling radiator caps formed with an inner and outer collar, which consists in positioning the inner collar within an outer grooved collar, positioning an ex pansible die within the inner collar, and exerting expanding. pressure upon said die to project portions of the inner collar into the groove'of said outer collar.

2. A method of assembling radiator caps formed with an inner and outer collar, which consists in arran ing said collars in desired relationshi an expanding a portion of the'inner co lar into a locking groove formed on the inner side of the outer collar.

3. A method of assembling radiator caps formed with an inner and outer collar, which consists in arranging said collars in desired relationship with each positively supported, and expanding an integral portion of the inner collar into a locking groove formed on the interior of the outer collar.

4. A method of assembling radiator caps formed with an inner and' outer collar, which consists in arranging said*collars in desired relationship. with each positively supported, positioning an expansible die within the inner collar, and applying a wedgmg pressure to inner parts of said die a to expand integral portions of the inner collar into a locking groove on the interior of theouter collar.

ALOYSIUS C. LIPPERT. JOHN ,A. SINKO. 

